I was thinking the same thing myself. Like your code may be 1/10th the length but you need to find someone with a seemingly rare skill set to maintain it.
Is it something we can develop in people? Teach? Practice?
It may be rare that people will do it and invent it on their own, but I know there was a point in my life that I did not want to write code this way, so I know at least one person can change.
The speed at which code runs? The size that the binary is? The size of the source file? How long it takes to build software that runs correctly?
These are things we can measure, and while I suspect once we optimise programming languages for these things we will end up with something that looks like K, I do not think that it will be K because I have noticed that K is very bad at some things that I like to do.